cssaboutus.css

.share-btn {
    /*display: inline-block;*/
    /*color: #ffffff;*/
   /* border: none;*/
    padding: 0.5em;
    width: 4em;
    /*box-shadow: 0 2px 0 0 rgba(0,0,0,0.2);*/
    /*outline: none;*/
    text-align: center;
}

.share-btn:hover {
  color: #eeeeee;
}

.share-btn:active {
  position: relative;
  top: 2px;
 /* box-shadow: none;
  color: #e2e2e2;*/
  outline: none;
}

/*.share-btn.twitter     { background: #55acee; }*/
/*.share-btn.google-plus { background: #dd4b39; }
.share-btn.facebook    { background: #3B5998; }*/